The existence of magnetic domains arises from the action of several interactions present in
magnetic materials, mainly exchange, anisotropy, and dipolar. This chapter deals with some …

Perpendicular recording technology has recently been introduced in hard disk drives for
computer and consumer electronics applications. Although conceptualized in the late 1970s …

During the past decade, magnetic recording density of HDD has doubled almost every 18
months. To keep increasing the recording density, there is a need to make the small bits …

Perpendicular magnetic recording (PMR) technology has recently been introduced in hard
disk drives (HDDs) by almost all the HDD manufacturers. It is expected that because of PMR …

The tremendous increase in areal density of hard disk drives is mainly ascribed to harmonic
development between magnetic recording media and heads in their scaling, especially …

Publisher Summary Fe–Pt alloys are known to exhibit high coercivity due to high
magnetocrystalline anisotropy (MCA) of the L1 0 FePt phase. The main intrinsic magnetic …

In. 1956,. IBM. built. the. RAMAC,. the. first. magnetic. hard. disk. drive,. featuring. a. total.
storage. capacity. of. 5. MB. at. a. recording. density. of. 2. kbit/in. 2.(Moser. et. al.. 2002) …

The magnetic behaviour of ensembles of magnetic entities depends on their intrinsic
magnetic properties and many other factors, including short-and long-range magnetic …

In alignment with the increasing demand for larger storage capacity and longer data
retention, the electrical control of magnetic anisotropy has been a research focus in the …

In this work, the multicomponent Co 60 Fe 5 Ni 5 Ti 25 B 5 (at.%) alloy powders were
synthesized from commercially available pure elemental powders by using a mechanical …